Gum acacia powder / gum acacia resin
Item No.： C0031
Store at： RT
English Name: gum acacia powder; Arabic gum； Gum arabic
Other names: Arabic resin; Gum powder; Arabic rubber; Arabic gum powder
CAS No.: 9000-01-5
Grade: ar
pH（50g/L，25℃）：4.0～4.8
Specific rotation: -20 ~ -39 o
Loss on drying: ≤ 10.0%
Acid insoluble matter: ≤ 0.1%
Viscosity: 60 ~ 130mm2/s
Burning residue: ≤ 4.0%
Physicochemical properties: transparent fine particles or white to yellowish powder. Almost completely soluble in twice the weight of water. Solubility in 100g saturated solution: 37G at 25 ℃, 38g at 50 ℃ and 40g at 90 ℃. The aqueous solution is acidic to litmus and soluble in glycerol and propylene glycol, but it is completely dissolved (about 5%) and has to be heated for a few more days. It is insoluble in ethanol. The relative density is 1.35-1.49 (the dry product at 100 ℃ is heavier). Irritating. The general name of gum obtained from gum trees grown in Arabia, Africa and Australia. Countries producing gum include Sudan, Chad, Nigeria, Ethiopia and Senegal, and Sudan accounts for more than 80% of the production.
Purpose: biochemical research. Analytical chemistry is used as a protective colloid. Some colorimetric analysis and turbidity analysis are used to prevent sedimentation. Detect silver and determine aluminum, antimony, arsenic, bismuth, magnesium and selenium. an adhesive. Emulsifier. As an adhesive, it can be prepared with water alone or with tragacanth gum, thymol, starch, plasticizer, etc. It is mainly used for the bonding of optical lenses, food packaging, etc., the gluing materials of stamps and labels, the outer film materials of drug forming and potentially solidified microcapsules, etc. Analytical chemistry is used as protective colloid, emulsifier and adhesive to prevent precipitation. In the food industry, gum Arabic is a natural emulsifying stabilizer, thickener, suspending agent, adhesive, film-forming agent, polishing agent and water-soluble dietary fiber. In nutrition, it basically does not produce heat and is a good water-soluble dietary fiber
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